![Giovanni [1st Edition] #18](https://storage.googleapis.com/images.pricecharting.com/89d65b807d049f39fd143f51fb465176c4800ad9f629f22eb08ab960709ee6ec/1600.jpg)
Pokemon Gym Challenge · #18 · Oct 2000
Should You Grade?
The gem rate is only 27% — you'll need a very clean copy to hit PSA 10.
Factors in grading cost, turnaround time, and compounding — how fast you can reinvest profits into the next flip.
Shows the best-value tier from each grading company based on EV, cost, and turnaround. Pop = total graded population; 10s = grade 10 count.